@book { DerDuftvonBrokenLeaf,
    title = "Der Duft von Broken Leaf",
    author = "Ann-Kristin {Vinterberg}",
    year = "2020",
    publisher = "via tolino media",
    address = "München, Deutschland",
    url = "https://tolino.openpublishing.com/document/1042856"
}